Manufacture of weftless cord fabric



- 1,651,806- M. CASTRICUM AL MANUFACTURE OF WEFTLESS 001115 FABRIC Filed April 10.19214 OR./ W

Patented Dec. 6, 192?.

barren s'ra'rss MARTIN GASTRICUM, SPRINGFIELD, AND EDWARD CSTAYLOR, OF LONGMEADOW, MASSACHUSETTS, ASSIGNORS TO THE FISK RUBBER COMPANY, OF CHIOOPEE FALLS, MASSACHUSETTS, '1 CORPORATION OF MASSACHUSETTS.

MANUFACTURE or wEFTLnss' corn) Fannie.

Application filed April 10, 1324. Serial No. 705,626.

This invention relates to improvements in calendering apparatus intended l lllt-lfflllfirly 'for the manufacture of weitless cord Fabric,

although in certain aspects it has features of use in connection with-other terms of fabric to be coated. It has for its objectthe utilimv tion of two sources of supply in connection with calender-s of the usual three-roll type which are adapted for rotation only in one direction. The manner in which this-object is accomplished, as well as other objects of convenience and continuity of operation, will appear from the description below.

Referring to the drawings,

' Fig. 1 is a diagrammatic view illustrating the calendering operation being conducted from one of the sources oi supply; and

Fig. 2 is a similar view showing the calcudering operation being conducted on material from the other source of supply The calendering appa 'atus used is shown as comprising two thrcero'll calenders having rolls 11, 12, and 13, the two calendcrs being arranged in tandem. The rotation oi? these rolls is in the direction of the arrows in the figures. Due to the gearing construction is toward the other calender of the tandem pair. Preferably, although not necessarily, the rolls and 15 are constructed in a manner similar to that shown at 32 in my prior application Serial No. 560,919, filed May 15, 1922, so that it may be moved either into or out of contact with the she-eted rubber on roll 12.

Only one of the rolls 15 is in actual operation at a time. The one in operation is shown as 15 in Fig. 1, wh le n Fig. 2 roll 15 is in operation. These rolls 15 and 15 receive their cords 16 from a source of supply indicated generically by 17, and comprising in the instance shown a creel 18, suitable equalizing and spacing devices 19, and cord heating means 20. In their passage from this source to the rolls 15 the cords may-be guided bv small. rolls 21. Tracing the path of the sheet of cords from the supply 17 in- Fig. 1, they pass under the roll 21, over roll 15 where they contact with the sheeted rubher on roll 12, between rolls 12 and 18 where 'the rubber thoroughly forced between the cords. around roll 13, over an equalizing tension device indicated generically at 22,.and between the lower rolls 12 and 13' of the calender shown at the right. No cords are fed to the right hand calender in this op- CiHtlOll, the rubber from the feed being pi" ed onto the sheet of partially rubberized cords between the two lowerrolls of the calender. The first calender coats. one side ot the sheet, and by the reversing incident to the passing of the sheet around roll 13 the sheet is presented to the second calender with its uncoated surface uppermost, and on this right hand calender receives a second coating of rubber. The double coated sheet thus produced may be wound up on any suitable device 23 between turns of a liner 24. i The operation above described can be continued as long as desired, new cords being tied in on the creel 18 in order to prevent exhaustion of the sheet. When, however, it is desired to change the character of cords being operated upon as by a change in in dividual size or construction, or by change in their spacing, it is desirable in order to avoid changing the cords on the creel to have an additional source of supply from which an already prepared sheet of the desired character can be furnished immediately. A similar desirability may arise from the breakage of a large number of cords on the creel in operation, or some other ditficulty with the cord Feeding apparatus. In any of these cases the right hand creel 18 may he broughtinto operation according to the device shown. The manner of doing this is indicated in Fig. 2. The cords com ing from the left hand creel are severed and tied back on themselves so as to form a loop around roll 15. This roll may be backed oit from the calender roll so as to completely separate the cords on this supply from the calender, according to the manner set forth in my prior application referred to. .The

'cords from the right hand supply, until now tied upon themselves around roll 15, may now be threaded between rolls 12 and 13 ot the right hand calender, roll 15 brought into operation. and the sheet of cords from the innate earner series.

right hand supply threaded throughthe apparatus in themanner shown in Fig. 2. It will be observed that-exactly the same operation results as in Fig. l butthatydue to the arrangement of the supplies, the operation, of the individual calenders is not reversed, the sheet of cords, however, passing through the entire apparatusin the reversed direction. The coated sheet in this instance is wound upon a similar device 23 mounted at the left hand side of the calendering apparatus. Having thus described our claim:

1. That arrangement of calenderingapparatuscomprising two calender-s each havinvention, We

ing a plurality of rolls and located in tandem, a pair of material supplies adapted for alternate use, and a pair of material guiding devices one being permanently associated with each of said supplies and positioned in cooperative relation to an intermediate roll of each calender on thesidethereof'adjacent the other calenderfwhereby the material from the supply in use may pass between a pair of rolls' of one calender, around one extreme roll of that calender, and between a pair of rolls of the other calender,

and whereby material from either of said supplies may be coated on both sides by the two calenders.

2. That arrangement of calendering aptioned on the opposite side of t-he'calender.

from the feed of rubber.

MARTIN CASTRICUM. EDWARD c. TAYLOR. 

